The evidence strongly supports the truthfulness of the statement. Primary sources from both the United States and the United Kingdom governments confirm the existence of a specific agreement regarding pharmaceuticals. A UK government news release explicitly announces a 'landmark UK-US pharmaceuticals deal' that includes a 'deal on US tariffs'. This is corroborated by a press release from the United States Trade Representative (USTR) announcing an 'Agreement in Principle' with the UK on pharmaceutical pricing, an issue directly linked to trade and tariffs.Furthermore, the 'zero tariffs' aspect of the claim is substantiated by multiple official UK government sources. The UK's trade tariff service provides links to lists of medical and pharmaceutical goods with suspended tariffs, and separate guidance documents confirm that the government has implemented these suspensions. This indicates the UK's policy of applying zero tariffs to these products, which would include those from the US. A specialized trade news report reinforces this, stating that the U.S. will exempt the UK from contemplated tariffs as part of a mutual agreement. A report from Reuters also mentions a deal to secure zero tariffs, placing it in the context of a broader World Trade Organization agreement on pharmaceuticals, suggesting this principle is well-established and has been bilaterally reaffirmed. There is no conflicting evidence among the relevant sources provided.